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19
the Pass Thru XLR to subwoofer will need to be slightly delayed to make up for its closer position to
the audience.
• Time Alignment Basics:
• To compensate for different distances’, determine the speaker farthest from the audience and delay
other speakers with the same signal to “time align” with the speaker farthest away from the audience.
• Sound travels through air at average humidity and room temperature at about 1.1 feet per ms.
Measure the difference in distance of each speaker feeding the audience. Feed the speaker farthest
from the audience with no time alignment delay. Set delays for the other closer speakers based on
their distance ahead of the farthest back speaker. Measure the distance difference and enter 1 ms
per 1.1 feet that each speaker is ahead of the farthest back speaker in your configuration. Time
alignment is not perfect as not all audience positions measure the same speaker distance differences.
• The EON718S offers 50ms of speaker delay on it’s input stage.
• Polarity – This inverts the polarity of the subwoofer. OFF indicates the woofer is in standard polarity. ON means
the polarity of the subwoofer is reversed.
Settings
• BT Control Pairing” enables Bluetooth control pairing for up to 30 seconds with the JBL Pro Connect app. This
turns off when a pairing has been made, or after 30 seconds. When pairing with the app, please initiate control
pairing first. Select the speaker in the “Add Speakers” menu. The speaker will send a 4-digit pin back to the LCD.
Confirm this using the MAIN/MENU knob.
• “LCD Contrast” allows the user to adjust the LCD contrast between 0 and 100%.
• “Factory Settings” resets all settings in the speaker to factory default, including Bluetooth communication pairing.
• “Firmware Version” shows the current firmware version loaded onto the speaker.
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